<template>
  <div class="header">
    <input
      type="text"
      placeholder="请输入搜索关键字，按回车键进行搜索"
      v-model="title"
      @keyup.enter="findItem"
    />
  </div>
</template>

<script>
export default {
  name: "UserHeader",
  data() {
    return {
      title: "",
    };
  },
  methods: {
    findItem() {
      // 搜索框不能为空
      if (!this.title.trim()) return alert("请输入搜索关键字！");
      this.$emit("searchUser", this.title);
    },
  },
};
</script>

<style scoped>
.header input {
  width: 98%;
  height: 28px;
  font-size: 14px;
  border: 1px solid #ccc;
  border-radius: 4px;
  padding: 4px 7px;
}

.header input:focus {
  outline: none;
  border-color: rgba(82, 168, 236, 0.8);
  box-shadow: inset 0 1px 1px rgba(0, 0, 0, 0.075),
    0 0 8px rgba(82, 168, 236, 0.6);
}
</style>